ARM: SAMSUNG: Add device definition for HSMMC3

This patch adds hsmmc3 device definition in plat-samsung. Because now
S5PV210 can support 4 hsmmc such as hsmmc0, hsmmc1, hsmmc2 and hsmmc3
and that can be used in further Samsung SoCs.

Signed-off-by: Hyuk Lee <hyuk1.lee@samsung.com>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
diff --git a/arch/arm/plat-samsung/Kconfig b/arch/arm/plat-samsung/Kconfig
index 12c647c..15ef1e4 100644
--- a/arch/arm/plat-samsung/Kconfig
+++ b/arch/arm/plat-samsung/Kconfig
@@ -160,6 +160,11 @@
 	help
 	  Compile in platform device definitions for HSMMC channel 2
 
+config S3C_DEV_HSMMC3
+	bool
+	help
+	  Compile in platform device definitions for HSMMC channel 3
+
 config S3C_DEV_HWMON
 	bool
 	help